Spraying device



w L. DE MING AND 0. CORNWALL.

I SPRAYING DEVICE.

APPUCATIQN FILED ]AN.20,1919- 13% Patented Aug. 3, 1920.

1, 5 a 5 3X33 3/ 3/ 36 3a 38 44 Z 3/ iii 'rr WILLIAM L. DEMING- AND CHABILESCORNWALL, OF SAL-EM, OHIO, ASSIGNORSITOTI-IE DEMING COIvEPAIIY, OF SALEM, OHIO, ACGRPORATIONOF OHIOQ;

. srnavine DEVICE. 7

To all whom it may concern:

Be it known that we, WILLIAM L. DEMING and Crmnnns CORNWALL, both residing at Salem, in the county of Columbiana and State 01" ()hio, have invented certain'new and useful Improvements in Spraying Devices of which the following is a full, clear, and exact description, reference being liad to the accompanying drawings.

This invention relates to a nozzle-strum ture for usein spraying trees, plants, build- I The object is to provide a simple and olii'cient device readily held by the operator and easily ad usted for d fferent forms'of iav.

cured at the end oi a hose are calledin trade spray guns. T hey are very useful in s 3 *aymg insecticide upon trees, for instance.

in sueh nse the fineness oi the spray is varied durin the o eration accordin to whether one is spraying the lower leaves or those near .the top of the tree, the range of this variation extending from a fine spray to substantially a solid stream; Our invention provides. for this adjustment in a my,

simple and effective manner'without render- 1 the parts cumbersome. A In spraying with poisonousinsecticide or oiscoloring liquid it is particularly desirable that the liquid whichdrips from the n0z-' zle should not come in contact with the op crators' hands. Our nozzle may readily carry a shield preventingsuch dripping liquid to cause any inconvenience and main i'zain'ing the nozzle portions beneath the grasped by the operator in making the adj ustment.

The body portion of our spraying nozzle has a tubular member closed at its end and provided with a lateral orifice and an exment the internal thread or the sleeve may serve to give the liquid a whirling motion to cause it to be emitted in the form of a spray, or by reason of the unthreaded recess the liquid may discharge over the end ogt' the central body without being acted on by such thread. and thus continue as a solid stream.

These results and various intermediate Specification of Letterslatent.

Devices oi this general character and ing. a tubular barrel adapted to be se' .eld dry so that they may be satisfactorilygrades of spray may be eliected by varying the long tudinal position of the sleeve'inember on the body member, thisvariation being limitedby the closed end of thebody abutting the inner face of the head portion of the outer member. Such abutment ha'sthe effect of entirely closing the nozzle, shutting oil i the discharge altogether.

"Our invention comprises a very simple, i 7.0

andeflective construction and arrangement ot parts embodying featuresgust explained.

It alsoincludes an extended sleeve surround ing the'pipe portion of. the device, andpro viding meansfforturning the sleeve. to adustthe nozzle. Our nozzle strncture cona n (l 7 readily asseinbledl a Ourfinvention will be more apparent from the description of asatistactory embodiment,

' F .Zshowi'ng th'e'nozzle-in position to dischargea solid streamil ig. tis an end view of the spray gun; Figs. 5and 6 are cross. sections, as indicated by the corresponding.

numbered lines on Fig. 3;

As shown in Figs. 1,2 and 10 indicates the tubular body orstem of our spraying device; This isa pipe of any desiredlength. At its inner end'it is threaded into a tubular casing 11, having'its exterior fluted to'enable it to lDQQOIlVIllGIItlY grasped and turned by Patented Ailg'. a, 1920.. Application 'filed January 20, 1919. Serial No.271,977. i I i sists of a few parts which are cheaply made 7 the hand. This hand hold preferablyflares v and has at its other end an internal thread 12 adapted to screw onto the pipe or hose from the spray pump or other source of supply. 1 i

a Secured to the outer end ofthe stem 10 is a head 20, shown as a cap surrounding the stem and rigidly seeuredto it. This'cap has on its exterior a squarethread 21 and we thus thread "a. cylindrical extension terminatng in a flat disk-like head22 clos ng the endof the cap. Between the thread and this disk like head are lateral discharge orifices 24:,

preferably radial, six being shown leading from the end of the stem 10, outwardly to the exterior of the cap.

Surrounding the stem 10 and head 20, is

0n the outer side of the sleeve 30 is shown a thread 35. Onto this screws a cap l0 hav I ing a central opening ll. This cap operates to clamp a disk 41-2 with a small central opening and a rubber packing washer 44 against the end of the sleeve. Between the cap and the thread 32 a chamber 36 is formed in the end of .the sleeve. i

With the construction described, if the parts occupied the position shown in Fig. 3, the liquid coming through the stem 10 discharges laterally through the orifices 24: into the recess 33 and thence passes inwardly over the end of the head 20and centrally out of the discharge orifice in the form of a solid streamJ If, however. the sleeve is turned further onto the stem untilthe disk head 22 extends into the opening within the thread 32, the liquid discharged through the passageways 24 can only reach the central discharge orifice by means of the oblique passageways 34: provided by the thread 32.

This gives a whirling motion of the liquid in the chamber 36, causing it to be emitted in the form of a spray, as indicated in Fig. 2.

Fig. 1 indicates the positioniof the parts ternally threaded.extensionf38of the cap body and operating to compress packing rings 51 against an internal shoulder 39 in the.

sleeve. The screwing inof the sleeve nut 50 compresses the packing sufliciently to make a liquid tight connection between the sleeve and the stem 10, this connectionpreventing any displacement of the sleeve and 'at the same time enabling it to be turned when de- 7 sired to shift it longitudinally on the body 20 and thus vary the kind of stream thrown.

it will be seen that the construction is simple and. at the same time effective. With the threadshovvn less than one rotation of the sleeve carries it from itsextreme inner. pos tiomshown 1n Flg. 1, to its extreme outer position, shown in Fig. 3, Thefouter position is limited by the sleeve shoulder 39 abutting a ring 55 secured to the stem 10. In

this position the orifices 24L discharge into the recess 33 and there is sufficient clearance over the head 22 for this liquid to then pass unobstructedly into the cavitybetween the head 22 and the discharge opening, the discharge being accordingly a solid stream.

If the sleeve be given a portion of a rotation from the position shown in Fig. 3,

it is brought into the position shown in Fig. 2 where the orifices 24k may discharge into the recess 33, but the directdischarge from the recess is closed by the head22 occupying the central space surrounded by the thread 32. The oblique thread grooves being the only means ofexit for this liquid it takes such path and is thereby given a whirling action, causing the discharge in the form ofspray. If the sleeve be given a stillfurther turn for a portion of a rotation it is brought into the position shown in Fig. 1, where the elastic Washer. 44: abuts the flat head 22 and the discharge from the nozzle is shut 0th The body of the sleeve member 30 is of suflicient extent to provide a very convenient hand hold for turning this sleeve. The ex- 1 terlor of this body is preferably fluted, as

shown at 36, ,to'enable it to be conveniently grasped'adjacent to the end of the device. In order that the sleeve portion 30 may be given ts adjusting rotation. withoutrequiring the operator to reach out and take hold of the sleeve itself we provide a tubular extension, 60 which surrounds the stem 10 and extends any suitable distance along this stein and is secured at its outer end to one ofthe rotative parts of the nozzle. We find it vveryconvenientto secure this extension tube 60 directly to the stuffingbox nut 50. As shown, the stutfing box nut has an angular groove in .its end which is entered bythe tube, .the' parts being preferably brazed orpinned togethen. Independent rotation I of the stuffing box nut and the sleeve may be prevented by any. suitable means, as. a

set-screw 65 mounted in an ear 66 on the.

sleeve and bearing against. an annular shouL der67 of the stu'ffing box nut. The extenend to enable it to be conveniently grasped.

63 indicates, ajbushing set into the end of this extension sleeve "and providing a con- 1 venient bearing on the stem 10.

The construction ust described. enables the nozzle to be adjusted either by the op-[ erator graspin the sleeve 30 or theexten.

sion tube 60. n either case his hand is pro tected :by the rubber shield 70.. This is shown as an. annular disk-like member beaded at its perlphery and also about a central opening. The central opening is of such size that the rubberfshield maysnugly surround the body of the shield adjacent to the threads Thisshield is put in place shown.

.' TIL- I v when the cap 4L0 is removed and is held be-. tween the inner end of that cap and a shoulit entersthe chamber 36, the steep spiral discharge ofthis liquid giving the necessary whirlin to thebody of liquid in the chamber, and at the same'time rapldly progressing it to the discharge orifice, 7 More over, the double thread gives two spiral entrances diametrically,opposite to the cham-' lV e have found that this double en ber. trance or the square thread groove of steep pitch produces a very satisfactory result.

it will be seen that our construction is very simple. It may be readily cleaned, the removal of the cap 40 allowing the. sleeve tobe screwed past the head 20 and slid down along the stem until the head 20 isentirely exposed. This. provides access to the passageways 2 L, enabling any obstruction therein to be removed, The threads and adjaccnt parts may also be readily cleaned when thus separated. The-packings, both for the stufiingbox and at the head of the nozzle, are readily replaceable when necessary. To further vary the fineness of the spray the disk having the discharge orifice may be removed and another disk with a different sized hole substituted.

Having thus described our invention what we claim is y 1. In a nozzle, the combination of a tubular stem, having an external thread of greater diameter than the unthreaded portion, and a sleeve member having an orifice and an internal thread of uniform pitch which engages the external thread of the the diameter of the threads with which the thread groove of the sleeve member communicates. i

2. In a nozzle, the combination of a tubula-r stem having an external thread near one end and a head beyond the thread, a sleeve member having a cooperating internal thread of uniform diameter and pitch,

recess intermediate the ends of the thread, and a lateral passageway through the stem adapted to direct liquid to said recess.

3. In a nozzle, the combination of a sleeve member having a discharge orifice, a cham' ber, and an internal multiple thread providmg a plurahty of spiral grooves entering unoccupied internal thread.

thechamber, and an internal stein having threadedengagement with said sleeve thread and havingaclosed end and a lateral passagewavadapted to discharge fiuid into the chamber,"whencethe fiuid may pass ina stream directly through said orifice, or be whirled by said. internal thread and emitted throu h s: 'd orifice as a sara I or its flow b .i V t checkedentirely, in sequent al order as the stem and sleeve are moved relatively along.

said threadstobring said closed endagainst said orifice,

V 4 In a nozzle,the combination of a stem having an external multiplethread and a closed end, a sleeve member having a dis charge or1fice,-a chamber and an, nternal ,multiple thread adapted to engage said externalthrea-d providinga plurality otspiral grooves entering the chamber, and radial p sageways through the stem between its thread and head and adapted todischarge fluid to be whirled by the internal thread. Y 3 p 5.. The combination or" a tubular stem havinga head and an external multiple thread, asleeve member having a discharge orifice and havinga chamber adjacent thereto and having aninternal thread comple1nentary to said externalthread, part of which inter-i nal threadnormally engages said external thread of the tubular stem, said internal thread having an annular recessed portion between its ends, a stuffing box carried by the sleeve and adapted to engage the wallof the tubular stem, and a lateral opening from the stem for liquid which may be discharged by passing into said recessed portion and through a'portion of the helical groove provided by said internal thread 7. In a nozzle, the combination of atubular stem of substantially uniform diameter through its length, a head secured over the end of the stem and closing it except 'for lateral passageways, and having anexternal thread thereon, a surrounding sleeve having an internal thread adapted to mesh with said external thread, the sleeve having an openingin the end, and being provided with means for whirlingthe liquid discharged through said lateral'passageways, and a stuliing box engaging the sleeve and the stem.

8. The combination of a tubular stenrhaving a flat head at its end, an external thread about the stem, and lateral discharge open ings through the stem between the head and thread, a sleeve member'havi'ng a cooperating internal thread, said internal thread having a portion of the helical wall intermerliate its ends removed, and a washer at the end of the sleeve member which said head is adapted to engage by adjustment; 7

9; The combination of a tubular stem having a flat head at its end, an external thread about the stem, and lateral discharge openings through the stem between the head and thread, a surrounding sleeve having an internaltlirezul meshing with the thread mentioned, a cap screwing onto 'the external sleeve, and disk having a small opening and. a packing washer held by the cap against the external sleeve, and projecting inwardly far enough to be engaged by said head when the sleeve is screwed toits limit onto the stem.

10. The combination of a tubular stem, a cap thereon having a head and an external thread, a lateral passageway-through the cap between the head and thread, a sleeve screw threaded on said thread,the threaded portionof the sleeve opposite said passage-V way having an annular recess, the portion of the thread on one side of the recess being a continuation of that on the other and both portions being adapted to act with sald external thread, a central bore in the head communicating with said recess, and a chamber in the sleeve beyond the threaded portion,

said. threaded portion forming an oblique passageway in the sleevefrojin the recess to said chamber."

11. The combination of a tubular stem provided with a head and an external thread and a lateral passageway between the head and thread, a sleeve screw threaded on said thread, a recess in the'sleeve opposite said passageway, a central bore in the sleeve communicating with said recess, a chamber in the sleeve beyond the central bore, a helical groove in the body of the sleeve at the edge of the central bore forming a continuation of the screw threaded helix of the adapted to direct liquid to'said chamber.

In testimony whereof, we hereunto a'l'l'ix oursignatures. y p

" WVILLIAM L..DEMING.

' CHARLES CORNVALL,

45 sleeve; and a cap on the sleeve and having a g 

